1.
furious energy; great vigor (in action)
Energetic, all-out effort in action. Rarely used alone; appears almost exclusively in the four-character idiom 獅子奮迅 (charging like a lion).
Almost never appears alone — learn it as part of 獅子奮迅 (charging like a lion), a four-character idiom (四字熟語) praising someone for working or fighting with overwhelming intensity. Used in sports commentary, news headlines, and admiring descriptions of someone's effort.
Common collocations
Formal/literary register; less common in casual conversation than in writing.